HVAC and Plumbing Services in Fullerton

Our Price* $88 X-Performance AC & Heating Tune Up what's included?
*Final pricing may vary based on pro's onsite estimate, which you can accept or decline.

Why Choose Us

Nexgen is the #1 HVAC company in Southern California and is Google Certified for home services in Fullerton and throughout Orange County. Our expertise enables us to help homeowners with heating, air conditioning, and air duct issues or trouble with thermostats. We can service a wide range of different systems and are available for emergencies to take your call and address any problem. If you require an emergency sewer repair or have a gas leak or furnace problem, you can count on Nexgen.

Fullerton customers choose us for professional installation, high quality service, and free estimates on everything from HVAC unit repair to furnace maintenance. In addition to competitive pricing, we provide financing options so you can afford the equipment, professional service, and the help you need. Our customer service representatives can send an HVAC or plumbing technician to your home quickly or schedule a visit at a convenient time.

HVAC Services

Nexgen provides the most reliable heating installation, maintenance, and repair services in the area. Despite Southern California’s mild climate, you never want to be left without heating on a chilly winter night. We service air source, ductless, geothermal, and absorption heat pumps as well as gas, oil, and electric furnaces found in homes throughout Fullerton.

Our licensed technicians can also improve control over your HVAC system with digital programmable thermostats and WiFi devices that can be adjusted via the Internet. Customers rely on our professional installers and maintenance crews to provide repairs and tune-ups. These essential services help extend the life of heating and cooling equipment to help you save in the long run.

We also install, repair, and maintain air conditioning systems, including traditional units, electric units, ductless units, and rooftop units. Whether you have central AC, a ductless mini-split system, or a packaged or window unit, you can rely on Nexgen. Our team can install and service any type of system, as well as address insulation issues to help make your home more energy efficient and reduce the load on your HVAC equipment.

Plumbing Services

Plumbing emergencies can arise at any time. Nexgen is available around the clock to resolve them. State-of-the-art leak detection systems enable us to pinpoint the exact problem area and apply our knowledge and expertise in non-intrusive repiping technology. If your piping needs to be replaced, you can count on us whether a gas line needs to be repaired or tree root removal is required.

Nexgen also addresses slow, backed up, or gurgling drains. In fact, drain cleaning is one of our main specialties. Our experienced crews employ techniques as advanced and effective as hydro jetting to clear blockages and can fix sewers using trenchless repair methods. Camera inspection is used to determine whether to perform sewer cleaning or completely repair your sewer line.

Fullerton homeowners also rely on us for garbage disposal repair. If your garbage disposal is jammed, making loud noise, or doesn’t turn on, call us right away. We can often fix it quickly or install a more reliable, efficient replacement. And, since you use hot water every day, a water heater problem can affect your quality of life and safety, but we’re equipped to handle water heater repair, installation, and replacement.

Contact Nexgen Today

Our heating, air conditioning, and plumbing professionals in Fullerton are standing by waiting to help. You can reach us in case of an emergency. Whether you need AC, furnace, or pipe installation, repair, or maintenance or have a gas plumbing issue, you can count on our experienced technicians. We also specialize in duct cleaning, insulation, tankless water heaters, and electric panel upgrades. Book service online or call 888-277-0415 today for a free quote or information on our warranties and maintenance plans, including our exclusive X Protection Plan.

Why Choose Nexgen?

checkmarkFamily Owned & Operated Business

checkmarkAvailable 24/7 for Emergencies

checkmarkTrusted Name in Home Repair

checkmarkHassle-Free Guaranteed Service

checkmarkFully Licensed & Insured Technicians

checkmarkCommercial & Residential Experts

X Protection Plan
Protection Plan Protect your home for life Over $1,000 value starting at
ONLY $19.95 a month!
Join the Family today Learn More
Nexgen Products





Air Purification


X Protection Plan
Protection Plan Protect your home for life Over $1,000 value starting at
ONLY $19.95 a month!
Join the Family today Learn More
Warranty NEXGEN Guarantee Our clients deserve service and product protection. NexGen offers a 10 YEAR WARRANTY on parts, and a LIFETIME WARRANTY on unit replacement.


Phone 833.729.9735

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We are OPEN as a designated essential service & taking extra precautions to serve you safely.